121201202200 has 192 divisors, whose sum is σ = 324066758400. Its totient is φ = 41813452800.

The previous prime is 121201202197. The next prime is 121201202249. The reversal of 121201202200 is 2202102121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2311474 + ... + 2363326.

It is an arithmetic number, because the mean of its divisors is an integer number (1687847700).

Almost surely, 2^121201202200 is an apocalyptic number.

121201202200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121201202200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162033379200).

121201202200 is an abundant number, since it is smaller than the sum of its proper divisors (202865556200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121201202200 is a wasteful number, since it uses less digits than its factorization.

121201202200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51942 (or 51933 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 121201202200 its reverse (2202102121), we get a palindrome (123403304321).

The spelling of 121201202200 in words is "one hundred twenty-one billion, two hundred one million, two hundred two thousand, two hundred".